Details
Written in the late 1800’s, this text was the defacto standard for this process. Book covers processing and roasting ore methods that are still useful today. It covers roasting processes in order to separate gold and silver ores from sulfide, which involves heating up the ores with certain salts in order to burn off the sulfides allowing you to recover the precious metals. This book discusses the different temperatures and mixtures that you need based on the type of ore you roasting; such methods are still used today in a lot of process plants.
